Spark-arrester.



lo. 676,||9. Patented June Il, |90l.

al. H. BLACK.

sPAmmResTia. v

(Applicatign led Oct. 18, 1900.)

um landen.)-

UNrrnD STATES 1a-TENT rrrcno JACOB H. BLACK, OF TRINIDAD, COLORADO.

SPARK-ARRESTER.

SPECIFICATION forming para er Letters Patent No. 676,1 19, dated June 1 1, 1901.

Application led October 18, 1900. Serial No. 33,498. (No model.)

To @ZZ whom t necty concern/.n

Beit known that I, JACOB I-I. BLACK, acitil zen of the United States, residing at Trinidad, inthe county of Las Animas and State of Colorado, have invented new and useful Improvement-s in Spark-Arresters, of which the following is a specification.

My invention relates to Vimprovements in that class of spark-arresters which are designed to be arranged in the upper portions of the smoke-stacks of locomotives and other engines. i

It consists ina' certain peculiar construction, the novelty, utility, and advantages of which will be fully understood from the following description and claims when taken in conjunction with the accompanying drawings, in whichi Figure 1 is a vertical diametrical section illustrating my improved spark-arrester in its proper operative position within the upper portion of a smoke-stack, and Fig. 2 is a perspective view ofthe spark-arrester removed from the stack.

Referring by letter to the said drawings, A is the smoke-stack of a locomotive or other engine, which is provided at its upper end` stack having a diamond-shaped head has its outer wall inclined in conformity to the lower wall of said head, so as to rest thereon; a tube c, which communicates with the chamber b and extends downwardly through an aperture in the lower wall of the head B to a suitable point of discharge; aninverted-cone-shaped deflector cl, which has its apex arranged coincident with the longitudinal center of the tubular portion a and merges at its top into a downwardly, inwardly,upwardly, and outwardly and downwardly curved portion or scroll e, which forms a circular chamber f, and hollow legs g, which are interposed between and connect the chambers b and f, as shown. The said hollow legs g also serve as supports for the inverted-conc-shaped de- `Hector and chamber f.

The tube c may be carried down into the re-box of a locomotive or down at the side of the boiler thereof, so as to discharge sparks and other products of combustion at a suitable point. It is, as stated, preferably connected to the chamber b; but it is obvious that, if desired, it might be connected to the stack-head B and simply made to register with an aperture in the outer wall of the chamber b, in which event the spark-arrester would be adapted to be readily lifted out of the stack in order to be cleaned or repaired or for any other purpose.

In the practical operation of my improvement the sparks forced up the stack A will strike agaiustthe deflector d and be guided thereby into the chamber j", from whence they -will be forced through the legs g into the chamber b. The jolting incident to the travel of the engine or locomotive will work the sparks through the chamber b to the tube c, down which they Will be forced by the exhaust and be discharged from the device. From this it follows that my improved arrester is calculated to effectually prevent the escape of sparks through the upper end of the stack and this without retarding the escape of smoke, exhaust-steam, and the like through said upper end of the stack, for it will be seen that such smoke and exhauststeam will find free egress through the spaces between the hollow legs g.

Itwill be appreciated from the foregoing that while efficient in arresting sparks and preventing the forcing of the same through the upperend of the stack my improved arrester is very simple and inexpensive,is adapted to be used in conjunction with smokestacks such as at present in use, and is susceptible of being readily removed from a stack in order to be cleaned or repaired and as readv ily replaced therein. p

' I have entered into a specific description of the construction and relative arrangement of the parts embraced in the present embodiment of my invention in order to impart a full, clear, and exact understanding of the same. I do not desire, however, to be understood as conning myself to such specific construction and arrangement of parts, as such IOO IO O changes or modifications may be madein practice as fairly fall within the scope of my claims. Having described my invention, what l claim, and desire to secure by Letters Patent, is

l. In a spark-arrester, the combination of an inverted conical deector merging at its upper portion into a. curled or rolled portion, forming an annular chamber arranged to receive sparks and the like from' the sides of the deflector, a, lower, 'annuler chamber, and hollow legs interposed between and connecting the upper and lower chambers an; intervals.

2. In a. spark-arrester, the combination of an inverted conical deiiector merging at its lupper portion into a. curl or roll, forming a ing the sparks from said chamber.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. l

JACOB H. BLACK.

Witnesses:

JEFF AYERS, -W. S. CRoMBIE. 

